EP0013771A1 - Maintenance platform - Google Patents
Maintenance platform Download PDFInfo
- Publication number
- EP0013771A1 EP0013771A1 EP79200042A EP79200042A EP0013771A1 EP 0013771 A1 EP0013771 A1 EP 0013771A1 EP 79200042 A EP79200042 A EP 79200042A EP 79200042 A EP79200042 A EP 79200042A EP 0013771 A1 EP0013771 A1 EP 0013771A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- assembly platform
- standing
- parts
- platform according
- standing surfaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/34—Scaffold constructions able to be folded in prismatic or flat parts or able to be turned down
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
- E04G1/362—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes specially adapted for tanks, silos or similar vessels
Definitions
- the present invention relates to an assembly platform for power plants, in particular for large steam turbines.
- the manufacturer of the turbines already supplies cover plates or cover grids which have corresponding contours and fit on the turbine outer surfaces and which can be used for scaffolding erected around the turbine.
- a multi-part and foldable stand surface is movably connected with foot parts and the individual base parts are attached to each other by hinges so that they can be folded one above the other.
- the base which is movably connected to the foot parts, there is the advantage that the relatively large surface of the base surface can be folded into a space-saving package when not in use and the foot parts can also be folded onto it.
- support brackets are provided for fixing the standing surfaces and struts on the turbine housing for supporting the foot parts.
- Attaching support brackets and struts to the turbine housing enables the assembly platform to be easily attached without the need for additional scaffolding parts. This also makes it possible to determine the correct position for the subsequent installation of an assembly platform when making repairs or revisions, already when designing the turbine housing.
- the standing surfaces consist of self-supporting honeycomb sheets, but they can also be formed from frame parts with gratings.
- the standing surfaces with the foot parts are designed to be removable from the turbine housing.
- a foot part which has a recess 2 on the lower edge into which a strut 3 fits and supports the foot part 1.
- Standing surface parts 4, 4 1 , 4 are movably mounted at the upper end of the foot part 1.
- Diagonal struts 5 are arranged between the foot part 1 and the standing surface 4, which serve to reinforce and stabilize the assembly platform.
- the standing surface 4 rests on a support bracket 6, which, like the strut 3, is fastened to the turbine housing 7.
- the standing surfaces 4 ', 4 lie in the folded position Condition on the stand area 4 and are connected to one another by hinges 8.
- receptacles 9 are also provided for a folding railing 10.
- FIG. 2 in which the same parts are provided with the same reference numerals as in Fig. 1, the assembly platform is shown in the unfolded state, the standing surfaces 4, 4 '4 "resting on the support brackets 6 on the turbine housing 7.
- supports 11 are arranged for the standing surfaces, of which only the supports on the standing surface 4' are shown for the sake of clarity.
- the standing surfaces 4, 4 ', 4" are turned on the support bracket 6 secured by bolts 12 against tipping.
- Such supports 11 are particularly advantageous when the standing surfaces 4, 4 ', 4 "consist of weight savings from self-supporting honeycomb sheets.
- the hinges 8 and, for example, anchors 13 can also be glued to the base surfaces 4, 4 ', 4 ", but it is appropriate to secure these bonds by screws, for example countersunk screws.
- the multi-part assembly platform according to the invention which can be used in the folded state as a package by means of a crane in the open steam chamber between the outer and inner housing in steam turbines, and in which the opening between the Parts of the housing can be completely covered, it is possible to take up work for revision or repair work in the turbine within a very short time, with additional protection against accidents being achieved.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Montagebühne für Kraftanlagen, insbesondere für Grossdampfturbinen.The present invention relates to an assembly platform for power plants, in particular for large steam turbines.
Um bei Dampfturbinen die Revisionszeiten möglichst niedrig zu halten, wodurch bei der Anlage nur eine kurze Stillstandzeit erforderlich wird, müssen die für eine Revision zu demontierenden-Teile möglichst servicefreundlich konstruiert sein, so dass keine langen zusätzlichen Montage-und Demontagezeiten, insbesondere für die bei Grossanlagen notwendigen Montagebühnen, Gerüste usw. auftreten.In order to keep the revision times as short as possible for steam turbines, which means that only a short downtime is required for the system, the parts to be dismantled must be constructed as service-friendly as possible, so that no long additional assembly and disassembly times, especially for those in large systems necessary assembly platforms, scaffolding, etc. occur.
In verschiedenen Fällen werden bereits vom Hersteller der Turbinen mit entsprechenden Konturen versehene Abdeckbleche oder Abdeckroste,die an die Turbinenaussenflächen passen, geliefert, welche um die Turbine herum errichtete Gerüste eingesetzt werden können.In various cases, the manufacturer of the turbines already supplies cover plates or cover grids which have corresponding contours and fit on the turbine outer surfaces and which can be used for scaffolding erected around the turbine.
Dabei ist jedoch von Nachteil, dass in jedem Fall die erforderlichen Gerüste vor Beginn der Reparatur oder Revision montiert und nach Beendigung derselben wieder demontiert werden müssen.However, it is disadvantageous that in any case the necessary scaffolding must be assembled before the repair or revision begins and dismantled after the same.
Es ist Aufgabe der vorliegenden Erfindung, eine Montagebühne zu schaffen, welche ohne besonderen konstruktiven Aufwand an der Turbine angebracht werden kann, welche der gegebenen Aussenkontur der Turbine angepasst ist und welche für das Montagepersonal ein Höchstmass an Sicherheit bietet.It is an object of the present invention to provide an assembly platform which can be attached to the turbine without any particular design effort, which is adapted to the given outer contour of the turbine and which offers the assembly personnel the greatest possible degree of safety.
Die vorgenannte Aufgabe wird erfindungsgemäss dadurch gelöst, dass eine mehrteilige und klappbar ausgebildete Standfläche mit Fussteilen beweglich verbunden ist und die einzelnen Standflächenteile durch Scharniere so untereinander befestigt sind, dass sie übereinanderliegend zusammenlegbar sind.The aforementioned object is achieved according to the invention in that a multi-part and foldable stand surface is movably connected with foot parts and the individual base parts are attached to each other by hinges so that they can be folded one above the other.
Durch die mehrteilige, vorteilhafterweise dreiteilige Ausbildung der Standfläche, welche mit den Fussteilen beweglich verbunden ist, ergibt sich der Vorteil, dass die relativ grosse Oberfläche der Standfläche im Nichtbedarfsfall zu einem platzsparenden Packet zusammengefaltet und die Fussteile ebenfalls daran angeklappt werden können.Due to the multi-part, advantageously three-part design of the base, which is movably connected to the foot parts, there is the advantage that the relatively large surface of the base surface can be folded into a space-saving package when not in use and the foot parts can also be folded onto it.
Gemäss einer vorteilhaften Ausbildungsform des Erfindungsgegenstandes sind zur Fixierung der Standflächen Stützbügel und zum Abstützen der Fussteile Verstrebungen am Turbinengehäuse vorgesehen.According to an advantageous embodiment of the subject of the invention, support brackets are provided for fixing the standing surfaces and struts on the turbine housing for supporting the foot parts.
Das Anbringen von Stützbügeln und Verstrebungen am Turbinengehäuse ermöglicht ein einfaches Anbringen der Montagebühne, ohne dass zusätzliche Gerüstteile erforderlich werden. Dadurch wird es auch ermöglicht, schon bei der Auslegung des Turbinengehäuses die richtige Position für das spätere Anbringen einer Montagebühne bei Vornahme-von Reparaturen oder Revisionen festzulegen.Attaching support brackets and struts to the turbine housing enables the assembly platform to be easily attached without the need for additional scaffolding parts. This also makes it possible to determine the correct position for the subsequent installation of an assembly platform when making repairs or revisions, already when designing the turbine housing.
Besonders vorteilhaft hat es sich erwiesen, wenn die Standflächen aus selbsttragenden Wabenblechen bestehen, jedoch können sie auch aus Rahmenteilen mit Gitterrosten gebildet werden.It has proven to be particularly advantageous if the standing surfaces consist of self-supporting honeycomb sheets, but they can also be formed from frame parts with gratings.
Die Ausbildung der Standflächen aus selbsttragenden Wabenblechen oder aus Rahmenteilen, welche vorzugsweise aus Leichtmetall mit darin eingepassten Gitterrosten bestehen,ergibt eine leichte Montagebühne, welche trotz geringem Gewicht eine ausreichende Stabilität aufweist und leicht transportabel ist.The formation of the stand areas from self-supporting honeycomb sheets or from frame parts, which preferably consist of light metal with grids fitted therein, results a light assembly platform, which despite its low weight has sufficient stability and is easy to transport.
Nach einer weiteren Ausführungsform des Erfindungsgegenstandes sind die Standflächen mit den Fussteilen vom Turbinengehäuse abnehmbar ausgebildet.According to a further embodiment of the subject matter of the invention, the standing surfaces with the foot parts are designed to be removable from the turbine housing.
Dies ermöglicht ein einfaches Anbringen an das und Abnehmen der Montagebühne vom Turbinengehäuse, ohne dass aufwendige Zusatzeinrichtungen erforderlich werden.This enables simple attachment to and removal of the assembly platform from the turbine housing, without the need for expensive additional devices.
In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes vereinfacht dargestellt.In the drawing, an embodiment of the subject matter of the invention is shown in simplified form.
Es zeigt:
- Fig. 1 eine Seitenansicht einer erfindungsgemässen Montagebühne mit zusammengeklappten Standflächen,
- Fig. 2 eine Draufsicht auf eine Montagebühne in auseinandergeklapptem Zustand.
- 1 is a side view of an assembly platform according to the invention with folded standing surfaces,
- Fig. 2 is a plan view of an assembly platform in the unfolded state.
Gemäss Fig. 1 ist mit 1 ein Fussteil bezeichnet, welches an der Unterkante eine Ausnehmung 2 aufweist, in die eine Verstrebung 3 einpasst und den Fussteil 1 abstützt. Am oberen Ende des Fussteiles 1 sind Standflächenteile 4, 41, 4" beweglich gelagert. Zwischen dem Fussteil 1 und der Standfläche 4 sind Diagonalstreben 5 angeordnet, welche zur Verstärkung und Stabilität der Montagebühne dienen. Die Standfläche 4 liegt an einem Stützbügel 6 auf, welcher ebenso wie die Verstrebung 3 am Turbinengehäuse 7 befestigt ist. Die Standflächen 4', 4" liegen im zusammengeklappten Zustand an der Standfläche 4 an und sind durch Scharniere 8 miteinander verbunden. Auf der Standfläche 4 sind ausserdem Aufnahmen 9 für ein klappbares Geländer 10 vorgesehen.1, 1 denotes a foot part, which has a recess 2 on the lower edge into which a
In der Fig. 2, in welcher gleiche Teile mit denselben Bezugszeichen versehen sind wie in Fig. l, ist die Montagebühne in aufgeklapptem Zustand dargestellt, wobei die Standflächen 4, 4' 4" auf den Stützbügeln 6 am Turbinengehäuse.7 aufliegen. Die einzelnen Standflächen 4, 4', 4" sind durch die Scharniere 8 beweglich miteinander verbunden, wobei vorteilhafterweise die Befestigungen der Füsse 1 gleichzeitig als Verstärkungen für die Scharniere 8 zwischen den Stand flächen 4 und 4' dienen. An der Auflagestelle der Standflächen 4, 4' 4" auf den Stützbügeln 6 sind Abstützungen 11 zu den Standflächen angeordnet, von welchen der Uebersichtlichkeit wegen nur die Abstützungen an der Standfläche 4' gezeigt sind. Die Standflächen 4, 4', 4" werden an den Stützbügeln 6 durch Bolzen 12 gegen Kippen gesichert.In Fig. 2, in which the same parts are provided with the same reference numerals as in Fig. 1, the assembly platform is shown in the unfolded state, the standing
Derartige Abstützungen 11 sind insbesondere dann vorteilhaft, wenn die Standflächen 4, 4', 4" aus Gewichtsersparnis aus selbsttragenden Wabenblechen bestehen.
Des weiteren können bei Verwendung von Wabenblechen die Scharniere 8 und beispielsweise auch Verankerungen 13 an den Standflächen 4, 4', 4" verklebt werden, jedoch ist es angebracht, diese Verklebungen durch Schrauben, beispielsweise Senkkopfschrauben zu sichern.Furthermore, when using honeycomb sheets, the
Durch die erfindungsgemässe mehrteilige Montagebühne, welche im zusammengeklappten Zustand als Paket mittels eines Kranes in den geöffneten Abdampfraum zwischen Aussen- und Innengehäuse bei Dampfturbinen eingesetzt werden kann, und bei welcher durch manuelles Aufklappen die Oeffnung zwischen den Gehäuseteilen vollständig überdeckt werden kann, wird innerhalb kürzester Zeit eine Arneitsaufnahme für Revisions-oder Reparaturarbeiten in der Turbine ermöglicht, wobei noch zusätzlich eine Absicherung gegen Unfälle erreicht wird.Due to the multi-part assembly platform according to the invention, which can be used in the folded state as a package by means of a crane in the open steam chamber between the outer and inner housing in steam turbines, and in which the opening between the Parts of the housing can be completely covered, it is possible to take up work for revision or repair work in the turbine within a very short time, with additional protection against accidents being achieved.
- 1 = Fussteil1 = foot section
- 2 = Ausnehmung2 = recess
- 3 = Verstrebung3 = bracing
- 4,4',4" = Standflächen4,4 ', 4 "= stand space
- 5 = Diagonalstrebe5 = diagonal strut
- 6 = Stützbügel6 = support bracket
- 7 = Turbinengehäuse7 = turbine housing
- 8 = Scharniere8 = hinges
- 9 = Aufnahmen9 = recordings
- 10 = Geländer10 = railing
- 11 = Abstützungen11 = supports
- 12 = Bolzen12 = bolt
- 13 = Verankerungen13 = anchorages
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP79200042A EP0013771A1 (en) | 1979-01-24 | 1979-01-24 | Maintenance platform |
DE19797906797U DE7906797U1 (en) | 1979-01-24 | 1979-03-12 | ASSEMBLY STAGE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP79200042A EP0013771A1 (en) | 1979-01-24 | 1979-01-24 | Maintenance platform |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0013771A1 true EP0013771A1 (en) | 1980-08-06 |
Family
ID=8186267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79200042A Ceased EP0013771A1 (en) | 1979-01-24 | 1979-01-24 | Maintenance platform |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0013771A1 (en) |
DE (1) | DE7906797U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2472071A1 (en) * | 2011-01-03 | 2012-07-04 | Alstom Technology Ltd | Industrial plant with noise attenuation hood |
DE102012009737A1 (en) | 2012-05-16 | 2013-11-21 | Audi Ag | Work platform for installation, inspection, maintenance and/or repair of e.g. production facility, has supporting unit that is mounted pivotably in region of rear end of platform such that platform is supportable in unfolded use state |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3058543A (en) * | 1961-03-29 | 1962-10-16 | Clyde W Prosser | Portable scaffolds |
US3289788A (en) * | 1964-12-31 | 1966-12-06 | Goodrich Gulf Chem Inc | Folding scaffold with central support |
GB1498618A (en) * | 1973-10-05 | 1978-01-25 | Buchanan J | Devices for use by decorators or handymen |
CH595546A5 (en) * | 1976-08-13 | 1978-02-15 | Bbc Brown Boveri & Cie |
-
1979
- 1979-01-24 EP EP79200042A patent/EP0013771A1/en not_active Ceased
- 1979-03-12 DE DE19797906797U patent/DE7906797U1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3058543A (en) * | 1961-03-29 | 1962-10-16 | Clyde W Prosser | Portable scaffolds |
US3289788A (en) * | 1964-12-31 | 1966-12-06 | Goodrich Gulf Chem Inc | Folding scaffold with central support |
GB1498618A (en) * | 1973-10-05 | 1978-01-25 | Buchanan J | Devices for use by decorators or handymen |
CH595546A5 (en) * | 1976-08-13 | 1978-02-15 | Bbc Brown Boveri & Cie |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2472071A1 (en) * | 2011-01-03 | 2012-07-04 | Alstom Technology Ltd | Industrial plant with noise attenuation hood |
CN102562315A (en) * | 2011-01-03 | 2012-07-11 | 阿尔斯通技术有限公司 | Industrial plant with noise attenuation hood |
US8556026B2 (en) | 2011-01-03 | 2013-10-15 | Alstom Technology Ltd | Industrial plant with noise attenuation hood |
CN102562315B (en) * | 2011-01-03 | 2016-12-28 | 通用电器技术有限公司 | Industrial equipment with blimp |
DE102012009737A1 (en) | 2012-05-16 | 2013-11-21 | Audi Ag | Work platform for installation, inspection, maintenance and/or repair of e.g. production facility, has supporting unit that is mounted pivotably in region of rear end of platform such that platform is supportable in unfolded use state |
DE102012009737B4 (en) | 2012-05-16 | 2018-05-17 | Audi Ag | Folding work platform |
Also Published As
Publication number | Publication date |
---|---|
DE7906797U1 (en) | 1980-07-03 |
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Legal Events
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AK | Designated contracting states |
Designated state(s): BE CH DE FR GB IT LU NL SE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Designated state(s): CH DE FR NL SE |
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17P | Request for examination filed | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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18R | Application refused |
Effective date: 19810831 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BBC AKTIENGESELLSCHAFT BROWN, BOVERI & CIE. |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: RITTER, URS |